Blood fractionation tube



FIG. 1 is a top perspective view of a blood fractionation tube showing our new design;

FIG. 2 is a front perspective view of the blood fractionation tube of FIG. 1;

FIG. 3 is a bottom perspective view of the blood fractionation tube of FIG. 1;

FIG. 4 is a top plan view of the blood fractionation tube of FIG. 1; and,

FIG. 5 is a bottom plan view of the blood fractionation tube of FIG. 1. 

CLAIM We claim the ornamental design for a blood fractionation tube, as shown and described. 